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People often clean eyeglasses by holding them near their mouths and exhaling heavily on them. This usually causes the lenses to "fog"; the moisture is then wiped off, and this process cleans the lenses.

Assuming the air in the lungs has a relative humidity of 75.0% at a dry bulb temperature of 100.°F, determine the maximum temperature of the glasses that just causes moisture droplets (i.e., "fog") to form when cleaned in this manner.

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Category:- Physics
Reference No.:- M92102292

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